NEET · Biology · Molecular Basis of Inheritance doubts

What does “DNA structure” actually mean in Molecular Basis of Inheritance, and why does it matter for NEET?

a double helix held by complementary base pairing: adenine with thymine, guanine with cytosine.

I keep getting “DNA structure” questions wrong in Molecular Basis of Inheritance. What's the trap?

pairing adenine with guanine or cytosine.

What does “Semi-conservative replication” actually mean in Molecular Basis of Inheritance, and why does it matter for NEET?

each new DNA molecule keeps one original strand and one newly made strand.

I keep getting “Semi-conservative replication” questions wrong in Molecular Basis of Inheritance. What's the trap?

thinking both strands of the daughter DNA are brand new.

What does “Transcription” actually mean in Molecular Basis of Inheritance, and why does it matter for NEET?

copying a gene's DNA into messenger RNA in the nucleus.

I keep getting “Transcription” questions wrong in Molecular Basis of Inheritance. What's the trap?

confusing transcription (DNA→RNA) with translation (RNA→protein).

What does “Translation” actually mean in Molecular Basis of Inheritance, and why does it matter for NEET?

reading mRNA codons at the ribosome to build a protein.

I keep getting “Translation” questions wrong in Molecular Basis of Inheritance. What's the trap?

thinking each base codes for one amino acid.

What is the difference between codon and anticodon?

A codon is a triplet of bases on mRNA that codes for an amino acid; an anticodon is the complementary triplet on tRNA that reads that codon.

What is the difference between transcription and translation?

Transcription makes mRNA from DNA in the nucleus; translation makes protein from mRNA at the ribosome.

What is the difference between purines and pyrimidines?

Purines (adenine, guanine) are double-ring bases; pyrimidines (cytosine, thymine, uracil) are single-ring bases.

How is Molecular Basis of Inheritance tested in NEET, and what should I focus on?

Prioritise the core ideas: DNA structure, Semi-conservative replication, Transcription.

What are the most common mistakes students make in Molecular Basis of Inheritance?

replication is semi-conservative — each daughter molecule retains one parental strand.

How do I revise Molecular Basis of Inheritance quickly before the exam?

One-page summary of DNA structure, Semi-conservative replication, Transcription, then timed previous-year questions.